An analysis of Landsat imagery shows big colonies of penguins on the Danger Islands are declining.

Scientists are analyzing the first radar images returned from a new instrument designed to measure the water content in snowpacks.

Scientists and engineers are ready to fly a new instrument designed to measure the water contained within a snowpack.

Researchers analyzed more than 40,000 fires between 1950 to 2017 to learn how wildfire frequency, size, and location has changed. Here’s what they learned.

Like the isbjørn (polar bears), we are ambush hunters. Our prey are atmospheric fountains, jets of gas being shot into space under the impact of the cusp aurora.